/**
 * Copyright 2008 Mathias Doenitz, http://lis.to/
 *
 * This file is part of the lis.to java desktop client. The lis.to java desktop client is free software: you can
 * redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * The lis.to java desktop client is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with the lis.to java desktop client.
 * If not, see http://www.gnu.org/licenses/
 */

package listo.client;

import com.google.inject.Inject;
import com.google.inject.Singleton;
import listo.utils.caching.Cache;
import listo.utils.logging.Log;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

/**
 * Simple provider for image icons.
 */
@Singleton
public class ImageProvider {

    private final Log log;
    private final Cache<String, ImageIcon> iconCache;

    @Inject
    public ImageProvider(Log log, Cache<String, ImageIcon> iconCache) {
        this.log = log;
        this.iconCache = iconCache;
    }

    public ImageIcon getIcon(String filename) {
        ImageIcon icon = iconCache.get(filename);
        if (icon != null) return icon;

        String imagePath = "/images/" + filename;
        URL url = ImageProvider.class.getResource(imagePath);
        if (url == null) {
            log.warn("Icon %1$s not found", imagePath);
            return null;
        }
        icon = new ImageIcon(url);

        iconCache.put(filename, icon);

        return icon;
    }

    public Image getImage(String filename) {
        return getIcon(filename).getImage();
    }
}
